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All results from a given calculation for C2H5I (Ethyl iodide)

using model chemistry: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-375.339822
Energy at 298.15K 
HF Energy-375.339822
Nuclear repulsion energy121.058397
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3252 2948 26.57 105.91 0.07 0.12
2 A' 3223 2921 8.66 95.90 0.57 0.73
3 A' 3159 2864 33.93 207.16 0.11 0.19
4 A' 1614 1463 1.18 5.37 0.74 0.85
5 A' 1604 1454 1.94 7.34 0.64 0.78
6 A' 1538 1394 2.91 1.34 0.74 0.85
7 A' 1357 1230 110.50 22.37 0.36 0.52
8 A' 1143 1036 0.48 4.12 0.25 0.40
9 A' 1033 937 10.54 4.56 0.75 0.86
10 A' 537 487 16.30 43.53 0.27 0.43
11 A' 276 250 1.26 4.73 0.32 0.48
12 A" 3314 3003 6.71 45.17 0.75 0.86
13 A" 3249 2945 15.87 59.59 0.75 0.86
14 A" 1605 1455 9.21 7.82 0.75 0.86
15 A" 1365 1238 0.20 1.11 0.75 0.86
16 A" 1085 983 0.63 1.77 0.75 0.86
17 A" 805 730 4.16 0.05 0.75 0.86
18 A" 273 247 0.00 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 15215.7 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 13791.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/Def2TZVPP
ABC
0.99577 0.09867 0.09284

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.604 -1.433 0.000
C2 -0.577 -2.381 0.000
I3 0.000 0.639 0.000
H4 1.217 -1.540 0.878
H5 1.217 -1.540 -0.878
H6 -0.210 -3.403 0.000
H7 -1.194 -2.243 0.877
H8 -1.194 -2.243 -0.877

Atom - Atom Distances (Å)
  C1 C2 I3 H4 H5 H6 H7 H8
C11.51502.15811.07631.07632.13202.15882.1588
C21.51503.07462.16732.16731.08581.08131.0813
I32.15813.07462.64602.64604.04743.24033.2403
H41.07632.16732.64601.75692.50562.51143.0642
H51.07632.16732.64601.75692.50563.06422.5114
H62.13201.08584.04742.50562.50561.75611.7561
H72.15881.08133.24032.51143.06421.75611.7541
H82.15881.08133.24033.06422.51141.75611.7541

picture of Ethyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H6 109.003 C1 C2 H7 111.411
C1 C2 H8 111.411 C2 C1 I3 112.485
C2 C1 H4 112.414 C2 C1 H5 112.414
I3 C1 H4 104.791 I3 C1 H5 104.791
H4 C1 H5 109.409 H6 C2 H7 108.255
H6 C2 H8 108.255 H7 C2 H8 108.404
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.124      
2 C -0.159      
3 I -0.132      
4 H 0.108      
5 H 0.108      
6 H 0.062      
7 H 0.069      
8 H 0.069      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.461 -2.287 0.000 2.332
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -41.171 -1.399 0.000
y -1.399 -37.211 0.000
z 0.000 0.000 -41.500
Traceless
 xyz
x -1.815 -1.399 0.000
y -1.399 4.124 0.000
z 0.000 0.000 -2.309
Polar
3z2-r2-4.617
x2-y2-3.959
xy-1.399
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.851 -0.330 0.000
y -0.330 10.777 0.000
z 0.000 0.000 6.462


<r2> (average value of r2) Å2
<r2> 121.019
(<r2>)1/2 11.001